iviehoff, on 2012-November-29, 10:31, said:
I don't think "illegal auction" is a concept in the laws, and I don't think it is a very helpful idea. Let's stick to auctions which contain irregularities. Not every illegal call in an auctions that stands is being "treated as legal". Some illegal calls cannot be offered to the opposition for acceptance, yet they will routinely bid on after them, and are not deemed to be accepting them by doing so. This applies in particular to calls made with the illegal assistance of UI. Such calls stands as illegal calls that were part of the auction that occurred, and we look to adjust if they caused damage. Of course you have the formal appearance of a procedurally correct auction, but the call was still illegal.
By saying it is "an illegal auction", I don't think you mean any different from saying that the rectification for an auction that contains an inadmissible is to undo everything up to and including the irregularity. But we can't undo any part of an auction when we get into the play period, so there is a point at which this rectification can no longer apply. Law 11A admits the possibility that rectifications may be forfeited, so I don't think this is really such an intractible problem.
By saying it is "an illegal auction", I don't think you mean any different from saying that the rectification for an auction that contains an inadmissible is to undo everything up to and including the irregularity. But we can't undo any part of an auction when we get into the play period, so there is a point at which this rectification can no longer apply. Law 11A admits the possibility that rectifications may be forfeited, so I don't think this is really such an intractible problem.
An auction is illegal when it contains a call that is an infraction (not just an irregularity, though all infractions are irregularities) of law. The laws may not explicitly articulate the concept, but it certainly exists.
The infraction in this case is not just of law 19, it's of a fundamental premise of the game that you cannot double your own side's bid, or redouble your own side's double. If that were allowed we would be playing some completely different game, not contract bridge.
11A suggests that a pair may forfeit its right to rectification, by taking some action other than calling the director when an irregularity occurs. It does not admit of the possibility of such forfeit for other reasons.